Keep in mind the cap has been modelled based on Sunset Shimmer’s hair style, but it can still be used pretty well for other characters, you just need to size down the prp_cap_base bone and move it into position, and bake procedural bones.
This also allows it to work for an anthro setup:
I don’t have the software, or 3D rendering skills to do that, but that would be cool.
You can reuse this model on those three, there are the red and blue skins on the model, you would just have to make a purple skin (simple enough), but you’d also have to wait for models of Starlight and Trixie to be made with the V3 base, or make your own.
jigglejigglejiggle